I remember one year ago implementing a PoS tagger using LISP (((( )))) ;o) while at Cam. CL...

... using unigrams the performance was horrible (about 20% if lucky), while you could get a 30%+ improvement by using N-grams > 1 (speed performance is another issue).

How is Grok dealing with these issues? What are Grok's performance rates?

jcgrij.